Agilent/Keysight 35656A

The Agilent/Keysight 35656A is an obsolete programmable Digital-to-Analog Converter (DAC) module for signal generation within modular data acquisition systems. This DAC source module generates user-defined analog signals from digital data, delivering programmable voltage outputs and current drive capability to external circuitry. The 35656A integrates into larger Agilent/Keysight chassis platforms via system bus communication, supporting flexible waveform generation through buffered data and precise sample timing control.

Technical Specifications

• Maximum voltage level: ±10 Vpk


• Maximum current output: ±50 mA


• Maximum output impedance: 1.2 Ω


• Programmable output attenuators: 0 dB, -20 dB, -40 dB Data Buffering & Timing


• Programmable buffer sizes: 1 to 32,768 datawords


• Programmable sample interval (Δt): 4 µsec to 64 sec

Key Features

• Programmable signal output from digital input data


• Low output impedance for direct external circuit driving


• Multiple attenuation settings for output level control


• Variable buffer allocation for diverse waveform lengths


• Flexible sample timing from microsecond to minute intervals


• System bus integration for modular platform deployment

Typical Applications

• Research and development signal generation


• Manufacturing test and measurement


• Control system signal sourcing


• Data acquisition system front-end

Compatibility & Integration Designed as a module within Agilent/Keysight data acquisition chassis systems. Communication occurs through system bus interface with clocking, trigger, and configuration control signals. Analog output delivered via dedicated connector. As an obsolete product, availability is limited to secondary market channels.